Growing community of inventors

Chofu, Japan

Shigemasa Kato

Average Co-Inventor Count = 2.15

ph-index = 9

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 251

Shigemasa KatoSanae Takada (20 patents)Shigemasa KatoShigemi Yamamoto (5 patents)Shigemasa KatoSanae Mori (2 patents)Shigemasa KatoMasaaki Tsukiji (1 patent)Shigemasa KatoTakayuki Shiina (1 patent)Shigemasa KatoYuujiro Motomizu (1 patent)Shigemasa KatoShigeki Okawa (1 patent)Shigemasa KatoTomoko Yamagata (1 patent)Shigemasa KatoMasafumi Susaki (1 patent)Shigemasa KatoShigemasa Kato (27 patents)Sanae TakadaSanae Takada (25 patents)Shigemi YamamotoShigemi Yamamoto (19 patents)Sanae MoriSanae Mori (5 patents)Masaaki TsukijiMasaaki Tsukiji (22 patents)Takayuki ShiinaTakayuki Shiina (9 patents)Yuujiro MotomizuYuujiro Motomizu (2 patents)Shigeki OkawaShigeki Okawa (1 patent)Tomoko YamagataTomoko Yamagata (1 patent)Masafumi SusakiMasafumi Susaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Juki Corporation (16 from 273 patents)

2. Tokyo Juki Industrial Co., Ltd. (11 from 105 patents)


27 patents:

1. D486837 - Thread winding device for a sewing machine

2. D472562 - Sewing machine

3. D467945 - Sewing machine

4. D465793 - Sewing machine

5. D459369 - Sewing machine

6. D418524 - Sewing machine

7. D403333 - Sewing machine

8. D392294 - Sewing machine

9. D384945 - Scanner for embroidery

10. D382280 - Sewing machine

11. D379357 - Sewing machine

12. 5549063 - Frame structure for a sewing machine arm

13. 5438943 - Guard device for sewing machines

14. D353148 - Sewing machine

15. D338022 - Sewing machine

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as of
12/21/2025
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